Abstract
Static dipole polarizability functions (α∥ and α⊥) and thermally averaged isotropic polarizabilities (α) of Li2, Na2, and K2 in their electronic ground states have been obtained from all-electron SCF+valence CI calculations which include core polarization effects by use of an effective potential. As a function of internuclear separation, α⊥ shows a monotonic increase in all three cases while α∥ exhibits a pronounced maximum at about 1.5 Re. For T=300 K, we find α(Li2)=214, α(Na2)=262, and α(K2)=477 a.u. Our results, to which we attribute an uncertainty of 2%, support the measured value for the average polarizability of Li2 [R. W. Molof et al., J. Chem. Phys. 61, 1816 (1974)] but disagree with their results for Na2 and K2. For these dimers, Molof ’s mean experimental values appear to be in error by 33% and 18%, respectively.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 9:02 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 9, 2024, 11:53 p.m.) |
Indexed | 4 months, 3 weeks ago (April 4, 2025, 1:45 p.m.) |
Issued | 39 years, 1 month ago (July 15, 1986) |
Published | 39 years, 1 month ago (July 15, 1986) |
Published Print | 39 years, 1 month ago (July 15, 1986) |
@article{M_ller_1986, title={Static dipole polarizabilities of Li2, Na2, and K2}, volume={85}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.451251}, DOI={10.1063/1.451251}, number={2}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Müller, Wolfgang and Meyer, Wilfried}, year={1986}, month=jul, pages={953–957} }